Using VSWIR Microimaging Spectroscopy to Explore the Mineralogical Diversity of HED Meteorites
Fraeman, Abigail A. and Ehlmann, Bethany L. and Northwood-Smith, Geraint W. D. and Liu, Yang and Wadhwa, Meenakshi and Greenberger, Rebecca N. (2016) Using VSWIR Microimaging Spectroscopy to Explore the Mineralogical Diversity of HED Meteorites. In: 2016 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). IEEE , Piscataway, NJ, pp. 1-5. ISBN 9781538605905. https://resolver.caltech.edu/CaltechAUTHORS:20160902-094411611
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20160902-094411611
We use VSWIR microimaging spectroscopy to survey the spectral diversity of HED meteorites at 80-μm/pixel spatial scale. Our goal in this work is both to explore the emerging capabilities of microimaging VSWIR spectroscopy and to contribute to understanding the petrologic diversity of the HED suite and the evolution of Vesta. Using a combination of manual and automated hyperspectral classification techniques, we identify four major classes of materials based on VSWIR absorptions that include pyroxene, olivine, Fe-bearing feldspars, and glass-bearing/featureless materials. Results show microimaging spectroscopy is an effective method for rapidly and non-destructively characterizing small compositional variations of meteorite samples and for locating rare phases for possible follow-up investigation. Future work will include incorporating SEM/EDS results to quantify sources of spectral variability and placing observations within a broader geologic framework of the differentiation and evolution of Vesta.
https://doi.org/10.1109/WHISPERS.2016.8071804 DOI Article
http://ieeexplore.ieee.org/document/8071804 Publisher Article
http://www.ieee-whispers.com Organization Conference Website
Fraeman, Abigail A. 0000-0003-4017-5158
Ehlmann, Bethany L. 0000-0002-2745-3240
© 2016 IEEE. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. © 2016. All rights reserved. Thanks to a JPL RTD grant to A.A.F. and a JPL PDF/RTD program grant to B.L.E. and D. Blaney for partial support of this work and to G. Rossman for providing samples.
Keck Institute for Space Studies
NASA/JPL/Caltech UNSPECIFIED
Keck Institute for Space Studies (KISS) UNSPECIFIED
Caltech UNSPECIFIED
JPL Research and Technology Development Fund UNSPECIFIED
Subject Keywords:
Microimaging spectroscopy, VSWIR spectroscopy, HED meteorites, Vesta, spectral classification
CaltechAUTHORS:20160902-094411611
https://resolver.caltech.edu/CaltechAUTHORS:20160902-094411611
Official Citation:
A. A. Fraeman, B. L. Ehlmann, G. W. D. Northwood-Smith, Y. Liu, M. Wadhwa and R. N. Greenberger, "Using VSWIR microimaging spectroscopy to explore the mineralogical diversity of HED meteorites," 2016 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Los Angeles, CA, 2016, pp. 1-5. doi: 10.1109/WHISPERS.2016.8071804. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8071804&isnumber=8071655
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Tony Diaz